Root > Products > Strep-Tactin® & Strep-tag® > Detection Reagents > Antibodies & Strep-Tactin > Strep-tag Detection via Strep-Tactin Conjugates and Antibodies

Strep-tag® detection

For the detection of Strep-tag® II (Twin-Strep-tag®) fusion proteins IBA offers two different detection systems:

  1. detection via Strep-Tactin® conjugates
  2. detection via monoclonal antibodies against Strep-tag®

Features and benefits

  • Versatile detection of N-terminal, C-terminal or internal Strep-tag® II
  • Highly-selective, fast, sensitive


The Strep-tag® protein detection system provides a means for a broad variety of applications, including:

  • Colony blot, dot blot, Western blot and ELISA procedures
  • Screening for positive expression clones
  • Monitoring expression levels and stability of Strep-tag® proteins
  • Immunocytochemistry and immunohistochemistry
  • FACS analysis
  • Protein localization and targeting studies

For capturing of Strep-tag® fusion proteins on solid phases, please use StrepMAB-Immo, the high-affinity monoclonal antibody against Strep-tag® (not recommended for Western blots).